/* 通用属性 */
body {
    font-size: 15px;
    font-family: apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
    background-color: rgb(252, 248, 248);
    background-image: url(https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1585312718762&di=37508f38d910a374f470045fc2974a66&imgtype=0&src=http%3A%2F%2Fpic1.win4000.com%2Fwallpaper%2F2019-12-23%2F5e006ba09d83f.jpg);
    background-image: linear-gradient(to top, #fbc2eb 0%, #a6c1ee 100%);
    background-repeat: no-repeat;
    background-position: 50% 50%;
    width: 1650px;
    margin: 0 auto;
}
p {
    font-size: 1rem;
    text-indent: 2em;
}
h1,h2,h3,h4,h5,h6 {
    font-weight: bold;

}
h1 {
    text-align: center;
}


/* 页脚 */
footer {
    font-size: 5mm;
}
footer p {
    text-align: center;
    /* border: 1px rebeccapurple solid; */
    height: 100px;
    color: rgb(24, 25, 26);
    font-size: 1rem; 
    /* font-style: italic; */
    /* font-weight: lighter; */
    /*text-indent: 2em;*/
    line-height: 100px;
    /* text-decoration: underline; */
    /* text-shadow: 0px 0px 2px green,
    0px 0px 3px blue,
    0px 0px 4px red;  
    font-size:38px; color:yellow;
    letter-spacing: 2px; */
}
span {
    margin-left: 2em;
    margin-right: 2em;
}